The Met referred itself to the Independent Office for Police Conduct (IOPC) after Flack’s death, which is standard procedure for when someone dies or is seriously injured and had recent contact with police.

The IOPC said an investigation is not required, and referred its findings to the Met’s Directorate of Professional Standards, which has also concluded an investigation is not needed.

“A comprehensive review of the circumstances surrounding all police contact with Ms Flack following her arrest and detention has already taken place as part of the referral process,” the Met said.

“No conduct has been identified on the part of any officer.

“In line with normal processes, if any new information should come to light it will be considered and action taken as appropriate.”